70989120 has 126 divisors (see below), whose sum is σ = 245738142. Its totient is φ = 18809856.

The previous prime is 70989119. The next prime is 70989131. The reversal of 70989120 is 2198907.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 831744 + 70157376 = 912^2 + 8376^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 452082 + ... + 452238.

Almost surely, 2^70989120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70989120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122869071).

70989120 is an abundant number, since it is smaller than the sum of its proper divisors (174749022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70989120 is a wasteful number, since it uses less digits than its factorization.

70989120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 70989120 is about 8425.5041392192. The cubic root of 70989120 is about 414.0606226425.

The spelling of 70989120 in words is "seventy million, nine hundred eighty-nine thousand, one hundred twenty".